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Unread 27-10-2014, 03:43
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Re: CNC Machining Bearing Blocks

Quote:
Originally Posted by Mk.32 View Post
Yes... but if you already have the $80,000+ Lathe/Tooling and I would "hope" the experience to take full advantage of it, it would be a trivial part to make. Heck you go into production and sell them at the same price as vex almost....

Personally I've made the same design before, I would just machine them from billet on a tormach in two operations... basically start with a hunk of alum in the vice and then machine all of one side. Make some soft jaws (alum jaws bolted into the vice so I can machine a profile them to grab circle parts) and then flip them over and face off the otherside/other operations.

Good practice probably, especially if you haven't done parts this complicated before.
Definitely what I would do. Given that its FRC, you could easily get away with circular interpolation and not even reaming the bearing pocket, though a 1.125" reamer is a pretty good investment. It's easily worth the cost of doing it yourself if you're doing 4 or more, especially when you consider student time to be as cheap as it is.